The American Thunder Cat-back exhaust system for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine, is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior tone. This bolt-on stainless steel system features a 3.50-inch mandrel-bent inlet pipe flowing into the 50 Series HD performance muffler with large 4.00-inch internals and a built-in tuned resonance chamber to minimize interior drone.
The system has dual 2.50-inch mandrel-bent tailpipes which use the factory hanger locations and are finished off with large 3.50-inch polished stainless steel tips. This exhaust system gives you choices for tailpipe exit location either out each side behind the rear tires if you do a lot of towing, or straight-out under the rear bumper for a muscular look. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for easy installation you can do at home. Note: Fits 2/4 WD model with Crew Cab/Short Bed (143.5 Inch WB), Crew Cab/Standard Bed (153 WB) and Double Cab/Standard Bed (143.5 Inch WB).
- Dyno Tuned For Maximum Performance
- Uses the Factory Hanger Locations
- 50 Series HD Performance Muffler
- Your Choice of Two Tailpipe Exits
- Clears the Factory Spare Tire
- Stainless Steel Construction
- Lifetime Limited Warranty
Flowmaster American Thunder Cat-Back Exhaust System Fits 2011-2018 Chevrolet Silverado 1500, Gmc Sierra 1500 With 6.2L Engine Aggressive To Moderate Sound Flowmaster 817602
Specifications:
| Country of Origin | USA |
| Sold As | Kit |
| UPC | 700042035038 |
| Availability | Available |
| Exhaust Type | Cat Back |
| Exit Style | Dual Out Side Dual Out Rear |
| Mount Style | Clamp-On |
| Shape | Oval |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2011 | GMC | Sierra 1500 | Denali | |
| 2012 | GMC | Sierra 1500 | Denali | |
| 2013 | GMC | Sierra 1500 | Denali | |
| 2014 | GMC | Sierra 1500 | Denali | |
| 2015 | GMC | Sierra 1500 | Denali | |
| 2016 | GMC | Sierra 1500 | Denali | |
| 2017 | GMC | Sierra 1500 | Denali | |
| 2018 | GMC | Sierra 1500 | Denali | |
| 2011 | Chevrolet | Silverado 1500 | LT | |
| 2012 | Chevrolet | Silverado 1500 | LT | |
| 2013 | Chevrolet | Silverado 1500 | LT | |
| 2011 | Chevrolet | Silverado 1500 | LTZ | |
| 2012 | Chevrolet | Silverado 1500 | LTZ | |
| 2013 | Chevrolet | Silverado 1500 | LTZ | |
| 2014 | Chevrolet | Silverado 1500 | LTZ | |
| 2015 | Chevrolet | Silverado 1500 | LTZ | |
| 2016 | Chevrolet | Silverado 1500 | LTZ | |
| 2017 | Chevrolet | Silverado 1500 | LTZ | |
| 2018 | Chevrolet | Silverado 1500 | LTZ | |
| 2011 | GMC | Sierra 1500 | SLE | |
| 2012 | GMC | Sierra 1500 | SLE | |
| 2013 | GMC | Sierra 1500 | SLE | |
| 2011 | GMC | Sierra 1500 | SLT | |
| 2012 | GMC | Sierra 1500 | SLT | |
| 2013 | GMC | Sierra 1500 | SLT | |
| 2014 | GMC | Sierra 1500 | SLT | |
| 2015 | GMC | Sierra 1500 | SLT | |
| 2016 | GMC | Sierra 1500 | SLT | |
| 2017 | GMC | Sierra 1500 | SLT | |
| 2018 | GMC | Sierra 1500 | SLT | |
| 2014 | Chevrolet | Silverado 1500 | High Country | |
| 2015 | Chevrolet | Silverado 1500 | High Country | |
| 2016 | Chevrolet | Silverado 1500 | High Country | |
| 2017 | Chevrolet | Silverado 1500 | High Country | |
| 2018 | Chevrolet | Silverado 1500 | High Country |